| Date | Value |
|---|---|
| Nov 10, 2014 10:49 | 0.00 ppm |
| May 21, 2014 16:34 | 0.00 ppm |
| Mar 26, 2014 11:56 | 0.00 ppm |
| Feb 27, 2014 12:35 | 0.00 ppm |
| Jan 23, 2014 20:21 | 0.00 ppm |
| Dec 20, 2013 08:20 | 0.00 ppm |
| Dec 17, 2013 10:44 | 0.00 ppm |
| Nov 4, 2013 15:28 | 0.00 ppm |
| Oct 26, 2013 19:06 | 0.00 ppm |
| Oct 24, 2013 23:50 | 0.00 ppm |